Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629406Generated: October 31, 2026

Pyrazole → methyl 2-fluoro-4-(1H-pyrazol-1-yl)benzoate

https://huagongshe.com/reaction/629406

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactant3-Fluoro-4-(methoxycarbonyl)benzeneboronic acidHCID 2782818—
CatalystHCID 178419072HCID 178419072—
SolventMethanolHCID 887—
Productmethyl 2-fluoro-4-(1H-pyrazol-1-yl)benzoateHCID 11846812133.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of (3-fluoro-4-(methoxycarbonyl)phenyl)boronic acid (2.40 g) and 1H-pyrazole (0.99 g) in methanol (54.0 mL) was added copper(I) oxide (0.10 g), and the mixture was stirred overnight at 50° C. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.89 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315458B2
Source datasetuspto-grants-2016_04
ORD IDord-f8d42bce7e9b49cabd899a17a199b142
Source noteuspto-grants-2016_04